TY - JOUR
T1 - The impact of wood smoke on ambient PM2.5 in northern Rocky Mountain valley communities
AU - Ward, Tony
AU - Lange, Todd
N1 - Funding Information:
Funding for this project was provided by the Montana Department of Environmental Quality. The authors also want to thank the site operators in Missoula, Belgrade, Butte, Hamilton, and Helena.
PY - 2010/3
Y1 - 2010/3
N2 - During the winters of 2006/2007 and 2007/2008, PM2.5 source apportionment programs were carried out within five western Montana valley communities. Filter samples were analyzed for mass and chemical composition. Information was utilized in a Chemical Mass Balance (CMB) computer model to apportion the sources of PM2.5. Results showed that wood smoke (likely residential woodstoves) was the major source of PM2.5 in each of the communities, contributing from 56% to 77% of the measured wintertime PM2.5. Results of 14C analyses showed that between 44% and 76% of the measured PM2.5 came from a new carbon (wood smoke) source, confirming the results of the CMB modeling. In summary, the CMB model results, coupled with the 14C results, support that wood smoke is the major contributor to the overall PM2.5 mass in these rural, northern Rocky Mountain airsheds throughout the winter months.
AB - During the winters of 2006/2007 and 2007/2008, PM2.5 source apportionment programs were carried out within five western Montana valley communities. Filter samples were analyzed for mass and chemical composition. Information was utilized in a Chemical Mass Balance (CMB) computer model to apportion the sources of PM2.5. Results showed that wood smoke (likely residential woodstoves) was the major source of PM2.5 in each of the communities, contributing from 56% to 77% of the measured wintertime PM2.5. Results of 14C analyses showed that between 44% and 76% of the measured PM2.5 came from a new carbon (wood smoke) source, confirming the results of the CMB modeling. In summary, the CMB model results, coupled with the 14C results, support that wood smoke is the major contributor to the overall PM2.5 mass in these rural, northern Rocky Mountain airsheds throughout the winter months.
KW - Biomass smoke
KW - Chemical mass balance
KW - PM
KW - Source apportionment
KW - Woodstoves
UR - http://www.scopus.com/inward/record.url?scp=74149090118&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2009.10.016
DO - 10.1016/j.envpol.2009.10.016
M3 - Article
C2 - 19897293
AN - SCOPUS:74149090118
SN - 0269-7491
VL - 158
SP - 723
EP - 729
JO - Environmental Pollution
JF - Environmental Pollution
IS - 3
ER -